Absolutely! Choosing the right sealant for your pressure-treated wood outdoor bench is crucial for its longevity and beauty. Pressure-treated wood is resistant to rot and insects, but it's not immune to weathering. Without protection, it can crack, warp, and turn gray. A high-quality sealant locks in moisture, repels water, and shields against UV rays.
For the best results, you generally have two excellent choices:
1. Penetrating Oil-Based Sealers (My Top Recommendation): These are often considered the gold standard for pressure-treated wood. Products like Ready Seal, Cabot Australian Timber Oil, or PPG ProLuxe Deck & Siding Stain soak deep into the wood fibers. They enhance the natural grain, provide rich color (or clear options), and offer superior water repellency. They are also easier to apply and more forgiving than film-forming finishes.
2. High-Quality Water-Based Acrylic Sealers: Modern acrylic sealers like Thompson's WaterSeal Advanced or BEHR Premium All-in-One Wood Finish have improved dramatically. They are low-odor, dry quickly, and clean up with soap and water. Look for ones labeled for decks and outdoor furniture with UV blockers.
Key Application Tips:
* Wait: Ensure new pressure-treated wood is fully dry and seasoned (can take several months). Spray water on it; if it beads, it's ready. If it soaks in, wait longer.
* Clean: Use a dedicated deck cleaner to remove dirt, mildew, and mill glaze.
* Apply: Use a brush, roller, or sprayer on a cool, dry day. Apply two thin coats, allowing proper drying time between each.
Avoid basic "film-forming" polyurethanes or varnishes for benches, as they can peel and trap moisture. For maximum protection, reapply your chosen sealant every 1-2 years. Your bench will thank you with years of durable, beautiful service!